One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,4)(3,6,8,7)(9,10,14,11)(12,16,13,15)(17,18)(19,25)(20,23)(21,30)(22,32)(24,28)(26,27)(29,31)(1,3)(2,6)(4,7)(5,8)(9,11,14,10)(12,15,13,16)(17,19,27,21,23,29,22,28)(18,24,32,31,20,30,26,25)(1,4,5,2)(3,7,8,6)(9,12,14,13)(10,15,11,16)(17,20,23,18)(19,24,29,30)(21,31,28,25)(22,32,27,26)(3,8)(6,7)(9,13,14,12)(10,16,11,15)(18,20)(24,30)(25,31)(26,32)(17,21,22,19,23,28,27,29)(18,25,26,30,20,31,32,24)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.